| Letter, to Theodore A. Baldwin | Amerikan Bord Heyeti (American Board) | 1877-07-30 |
| Letter, to the American Missionaries of the Constantinople Station, from George A. Perkins | Amerikan Bord Heyeti (American Board) | 1864-01-12 |
| Letter, to Ira F. Pettibone, Tillman C. Trowbridge, from Herman N. Barnum | Amerikan Bord Heyeti (American Board) | 1863-10-22 |
| Letter, to the Committee ad Interim, from Henry C. Haskell | Amerikan Bord Heyeti (American Board) | 1863-07-21 |
| Letter, to the members of the Constantinople Station, from E. Bliss | Amerikan Bord Heyeti (American Board) | 1864-06-03 |
| Letter, to Tillman C. Trowbridge, from Henry J. Van Lennep | Amerikan Bord Heyeti (American Board) | 1864-04-07 |
| Letter, to Tillman C. Trowbridge, from Herman N. Barnum | Amerikan Bord Heyeti (American Board) | 1864-07-14 |
| Letter, to Tillman C. Trowbridge, from Edwin E. Bliss | Amerikan Bord Heyeti (American Board) | 1864-05-03 |
| Letter, to Tillman C. Trowbridge, from Julius Y. Leonard | Amerikan Bord Heyeti (American Board) | 1863-11-11 |
| Letter, to Julius Y. Leonard, from Edward M. Dodd | Amerikan Bord Heyeti (American Board) | 1863-11-10 |
